linux-kernel - Re: [PATCH 0/5] ARM: imx: ventana: enable LDO-bypass mode

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Date:	Tue, 24 Mar 2015 16:27:30 +0100
From:	Jean-Michel Hautbois <jhautbois@...il.com>
To:	Tim Harvey <tharvey@...eworks.com>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>,
	Silvio F <silvio.fricke@...il.com>,
	linux-arm-kernel@...ts.infradead.org,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Christian Hemp <c.hemp@...tec.de>,
	Russell King <rmk+kernel@....linux.org.uk>,
	Iain Paton <ipaton0@...il.com>,
	Fabio Estevam <festevam@...il.com>,
	Shawn Guo <shawn.guo@...escale.com>,
	Lucas Stach <l.stach@...gutronix.de>
Subject: Re: [PATCH 0/5] ARM: imx: ventana: enable LDO-bypass mode

Hi Tim,

2015-03-24 16:11 GMT+01:00 Tim Harvey <tharvey@...eworks.com>:
> On Tue, Feb 24, 2015 at 1:36 PM, Jean-Michel Hautbois
> <jhautbois@...il.com> wrote:
>> Hi Tim,
>>
>> 2014-10-31 5:27 GMT+01:00 Tim Harvey <tharvey@...eworks.com>:
>>> The IMX6 has some internal LDO regulators provided by the anatop regulator
>>> block that can regulate the arm, soc, gpu/vpu core supplies. Alternatively a
>>> design can supply vdd_arm and vdd_soc externally via a PMIC to provide a lower
>>> power draw (switches are more efficient that ldo's).
>>
>> What is the status of these patches ? My design uses a PFUZE100
>> regulator, and having this would be interesting.
>>
>> Thanks,
>> JM
>
> JM,
>
> No update from me - I haven't had time to get back to this
> unfortunately. Most of our customers are using the Freescale vendor
> kernel and I have ldo-bypass working fine there, just not in a way
> that is easily mainlineable without work.


OK, thank you...
It's ashame that Freescale won't do a proper job to mainline
everything, it would be good for them too !
Well, If I get some time to look into this I will probably start from
your proposal.

Thanks,
JM
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